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Cesium Bismuth Iodi...
Cesium Bismuth Iodide Solar Cells from Systematic Molar Ratio Variation of CsI and BiI3
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- Johansson, Malin B, 1972- (author)
- Uppsala universitet,Fysikalisk kemi
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- Philippe, Bertrand, Dr. 1986- (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Banerjee, Amitava (author)
- Uppsala universitet,Materialteori
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- Phuyal, Dibya (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Mukherjee, Soham (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Chakraborty, Sudip (author)
- Uppsala universitet,Materialteori
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- Cameau, Mathis (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Zhu, Huimin (author)
- Uppsala universitet,Fysikalisk kemi
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- Ahuja, Rajeev (author)
- KTH,Tillämpad materialfysik,Uppsala Univ, Dept Phys & Astron, Mat Theory Div, Condensed Matter Theory Grp, Box 516, SE-75120 Uppsala, Sweden.,Uppsala Univ, Dept Phys & Astron, Mat Theory Div, Condensed Matter TRoyal Inst Technol, Dept Mat & Engn, Appl Mat Phys, S-10044 Stockholm, Sweden
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- Boschloo, Gerrit (author)
- Uppsala universitet,Fysikalisk kemi
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- Rensmo, Håkan (author)
- Uppsala Univ, Dept Phys & Astron, Div Mol & Condensed Matter Phys, SE-75120 Uppsala, Sweden.
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- Johansson, Erik (author)
- Uppsala universitet,Fysikalisk kemi
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(creator_code:org_t)
- 2019-09-04
- 2019
- English.
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In: Inorganic Chemistry. - : AMER CHEMICAL SOC. - 0020-1669 .- 1520-510X. ; 58:18, s. 12040-12052
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Metal halide compounds with photovoltaic properties prepared from solution have received increased attention for utilization in solar cells. In this work, low-toxicity cesium bismuth iodides are synthesized from solution, and their photovoltaic and, optical properties as well as electronic and crystal structures are investigated. The X-ray diffraction patterns reveal that a CsI/BiI3 precursor ratio of 1.5:1 can convert pure rhombohedral BiI3 to pure hexagonal Cs3Bi2I9, but any ratio intermediate of this stoichiometry and pure BiI3 yields a mixture containing the two crystalline phases Cs3Bi2I9 and BiI3, with their relative fraction depending on the CsI/BiI3 ratio. Solar cells from the series of compounds are characterized, showing the highest efficiency for the compounds with a mixture of the two structures. The energies of the valence band edge were estimated using hard and soft X-ray photoelectron spectroscopy for more bulk and surface electronic properties, respectively. On the basis of these measurements, together with UV-vis-near-IR spectrophotometry, measuring the band gap, and Kelvin probe measurements for estimating the work function, an approximate energy diagram has been compiled clarifying the relationship between the positions of the valence and conduction band edges and the Fermi level.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
Keyword
- Material and Nano Physics
- Material- och nanofysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Johansson, Malin ...
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Philippe, Bertra ...
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Banerjee, Amitav ...
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Phuyal, Dibya
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Mukherjee, Soham
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Chakraborty, Sud ...
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show more...
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Cameau, Mathis
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Zhu, Huimin
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Ahuja, Rajeev
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Boschloo, Gerrit
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Rensmo, Håkan
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Johansson, Erik
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Inorganic Chemis ...
- Articles in the publication
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Inorganic Chemis ...
- By the university
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Royal Institute of Technology
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Uppsala University